Composite aluminum jack poles

A vertical support pole of a scaffold which pole is adapted for use with a pump jack of the scaffold, comprising

• an elongated hollow aluminum member of substantially rectangular cross-section fitted at one end with a flat base adapted to rest on ground when the pole is in the vertical erect position, with
• a pair of opposed sides of said pole each shaped with a continuous recess extending substantially for the length of the pole, with
• a wooden member fastened in each said recess and extending for a substantially length of the pole, each said wooden member extending beyond the side of the pole in which it is fastened so as to serve as a facing engageable by a pump jack of the scaffold, together with
• a plurality of openings formed in each of the other two opposed sides of the support pole, with each opening in one of said sides located at a position with regard to an opening in the other of said sides such that an anchoring pin may be detachably fitted through both of said openings so as to serve as a detachable anchor for the pump jack, when the pump jack of the scaffold is to be held in place, including
• a plurality of staggered openings in said recesses and in said facings and securing means passing therethrough, wherein
• said facings have recessed openings for receiving therein bolts with countersunk heads and securing nuts.